ARM I: Patients receive a placebo IV over 30-90 minutes on day 1, gemcitabine hydrochloride IV over 90 minutes on days 1 and 8, and docetaxel IV over 60 minutes on day 8. Patients also receive filgrastim subcutaneously (SC) on days 9-15 or pegfilgrastim SC on day 9 or 10.